This United Nations (UN) eBook explains how carbon emissions trading can contribute to reducing greenhouse gas emissions through the development of energy efficiency projects. The booklet explores some of the policy and commercial issues of global warming and environmental programmes based on credit trading mechanisms that have been in use for 25 years. A CD-ROM is included which contains an introductory UN Television film and a step by step handbook on carbon trading procedures with related case studies and United Nations documents. PC Requirements: Microsoft Windows 9X or XP, 16 MB of RAM, 10 MB of available hard disk space.